Improvement in portable filters



l UNITED STATES- -PATENT EEICE.

J P. A. HAVARD AND J; B. BOURGOISE, OF PARS, FRANCE.

IMPROVEMENT IN PORTABLE FILTERS.

Specification forming part of Letters Patent No. 34,492, dated February25, 1862.

To all whom t may concer-n:

Be it known that we, JULES PANcoME AL- FRED HAVAED and J EAN BAPTISTEBOUR- GOISE, both of Paris,in the Empire of France, have invented a newand Improved Filtering Apparatus; .and we do hereby declare that thefollowing is a full, clear, and exact description of the same, referencebeing had to the accompanying drawings, making a part of thisspecification, in which- Figure 1 is a side elevation of our improvedfiltering apparatus in condition for use. Fig. 2 is a central verticalsection of the same. Fig. 3 is an elevation of the apparatus taken outof its case. Fig. 4 is an elevation of the case, and Fig. 5 is a plan ofthe same. Fig. 6 is an elevation of the packing case or bucket. Fig. 7is a central vertical section of the apparatus folded or contracted andcased for transportation.

Similar letters of reference indicate corre-A sponding parts in theseveral figures.

The objectof this invention is to obtain a filtering apparatus of suchform and made of such material as to be capable of being readily foldedor contracted into a small compass, whereby it may be put into a bucketor case of one-half of its liquid-containing capacity and thereby madeeasily transportable, the apparatus being especially designed fordomestic and army purposes.

The invention consists of two receptacles formed of any suitablewater-proof fabric and separated from each other bya suitable filteringmedium, which is confined between two wire-gauze or perforated metallicdisks; also,

in the manner of supporting the upper receptacle, and also in the mannerof packing the apparatus for transportation.

To enable others skilled in the art to fully understand and constructour invention, we will proceed to describe it.

A representsasack, which is made of hemp cloth coated on the inside withcaoutchouc to render it water-proof. Said sack may be made of anysuitable water-proof fabric. The upper and lower edges of the sack areclamped between two annular metallic rings a a b b', and therebysecurely fastened. The said rings when the sack is distended cause it toassume a cylindrical form. On the inside and about one-third the lengthof the sack from the bottom upward it is divided by a suitable filteringmedium into two compartments, forming receptacles B C, the former beingabove the filtering medium for the reception of the water to befiltered, and the latter below for the reception of the filtrate. Thefiltering medium D consists of layers of wool, or it lnay be of anyother suitable material or substance, interposed between two wire-gauzeor perforated metallic disks c d, said disks being soldered or otherwiseattached on opposite sides of an annular ring e, forming a case for thefiltering medium, which case is fastened in position in the sack by abaud or ring f, which encompasses the sack opposite the case of thefiltering medium and clamps it between the outside ofthe inner ring eand inside of the outer ring f. The receptacle C is closed at its lowerend by a Inetallic bottom g, which is fastened by solder or otherwise tothe top of the inner bot-tom ring b.

E is a faucet, which is secured by a screwthread,` or itl may be in anyother suitable manner, to the bottom of the receptacle C, and is for thepurpose of drawing the filtrate therefrom.

A flexible tube 71, open at both ends, is attached at its upper end tothe ring a, and at its lower end to a metallic tuberi, which passesthrough the filtering medium near its outer edge, forming acommunication between the receptacle (l and external air, and therebyaffording means for aproper ventilation of the receptacle. The innerring aat the upper end of the sack is provided with two ears j la,placed opposite each other, and to which an ordinary bucket-bail m isfastened, whereby the upper part of the sack forming the receptacle Bissuspended from an arm, as will be hereinafter fully described. Said bailalso enables the apparatus to be carried about in the hand and to beused like a common bucket for carrying water.

H represents a cylindrical metallic case, which is for the purpose ofsupporting the apparatus when it is desired for ordinary use in thehouse or camp, and in` which it is folded when it is to be packed fortransportation. The receptacle C may be supported by the bottom edge ofthe ring f, resting on lugs or brackets projecting inwardly from theupper edge of the case, or` it may be supported-1 merely byfriction,l asshown in; the accompanying illustration.

The exible sides of the receptacle B are retained in a distended orstretched form when the apparatus is desired for use by the telescopicsliding tubes n o p q, the lower secceptacle B, when it percolatesthrough the interstices of the filtering mediu rn intothercceptacle C,from which it is drawn oias it is desired for use, through a faucethereinbefore described. A

WVhen the pores or interstices of the Iiltering medium'become cloggedwith sedi-menait is necessary to have the material cleansed. This iseiected, after removing thefaucet and I stopping up the opening in thebottoni of the receptacle by a plug or other suitabledevice, by pressingonithe bottom of the receptacle, causing the filtrate to pass forciblythrough the interstices of the ltering material, there- 'byvwashing andcleansing the same in the most thoro ugh manner.

Having thus described our invention, what We claim as new, and desire tosecure by Letters Patent, is-

1. A filtering apparatus consisting o f two receptacles B C, formed offlexible waterproof fabric, filtering medium D, and Wire-4 gauze orperforated metallic disks c el, When combined andarra'nge'd in themannersub-` stantially as described. i

2. The sliding tubes 1oz-op q, arm n', and bail m, arranged, incombination with'. receptacle B, to operate substantially asdescribed'.i

`3. The 4flexible sides ot? the receptacles 13.0 sliding tubes n opg,case Il, and packing case or bucket I, combinedl and arranged? in themanner and for the purpose set forth.

J. P. Ai. HAVARIX V Witnesses:

GEO. HUTTON, C." ANos.

J. n. BoUReoIsE.

